Strix
26.1K

CVE-2025-40553

CRITICALCVSS 9.8/10EPSS 60.39%

Last modified

CVE-2025-40553 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.. EPSS estimates a 60.39% chance of exploitation in the next 30 days.

Description

SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
60.39%

99.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SolarwindsWeb Help Desk< 2026.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2025-40553?
SolarWinds Web Help Desk was found to be susceptible to an untrusted data deserialization vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.
How severe is CVE-2025-40553?
CVE-2025-40553 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 60.39% probability of exploitation in the next 30 days.
How do I fix CVE-2025-40553?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-40553?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST